Finding the Fourth Proportional to 6,420,581.63, 8,860,400.51 and 3,519,910.26
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Solution
The fourth proportional to 6,420,581.63, 8,860,400.51 and 3,519,910.26 is: 4,857,474.99
Step by Step Solution
- Step 1: Write the proportion equation
6,420,581.63 : 8,860,400.51 = 3,519,910.26 : x - Step 2: Convert to fraction form
6,420,581.63/8,860,400.51 = 3,519,910.26/x - Step 3: Cross multiply
6,420,581.63x = 8,860,400.51 × 3,519,910.26 - Step 4: Simplify right side
6,420,581.63x = 31,187,814,645,258.68 - Step 5: Solve for x
x = 31,187,814,645,258.68/6,420,581.63 - Step 6: Final answer
x = 4,857,474.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.